BGuthrie Photos: Washington Post -- Coffee @ WaPo -- Transformers (6): Techsplain IT to Me (w/Vinton Cerf)

Washington Post -- Coffee @ WaPo -- Transformers (6): Techsplain IT to Me (w/Vinton Cerf):

Bruce Guthrie Photos Home Page: [Click here] to go to Bruce Guthrie Photos home page.

Description of Pictures: Science and technology pioneers, business leaders and policymakers gathered in Washington Wednesday to examine advances pushing the boundaries of knowledge, upending industries and dramatically changing everyday life.

WELCOME BACK
* Lois Romano, Editor, Washington Post Live

(6) TECHSPLAIN IT TO ME: “The father of the Internet” explains how it works and what’s needed as billions more devices connect on Earth and beyond.
* Vinton G. Cerf, Chief Internet Evangelist, Google

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Copyrights: All pictures were taken by amateur photographer Bruce Guthrie (me!) who retains copyright on them. Free for non-commercial use with attribution. See the [Creative Commons] definition of what this means. "Photos (c) Bruce Guthrie" is fine for attribution. (Commercial use folks including AI scrapers can of course contact me.) Feel free to use in publications and pages with attribution but you don't have permission to sell the photos themselves. A free copy of any printed publication using any photographs is requested. Descriptive text, if any, is from a mixture of sources, quite frequently from signs at the location or from official web sites; copyrights, if any, are retained by their original owners.

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[1] TRAN6_160518_004.JPG	[2] TRAN6_160518_013.JPG	[3] TRAN6_160518_021.JPG
[4] TRAN6_160518_032.JPG	[5] TRAN6_160518_036.JPG	[6] TRAN6_160518_038.JPG
[7] TRAN6_160518_053.JPG	[8] TRAN6_160518_072.JPG	[9] TRAN6_160518_084.JPG
[10] TRAN6_160518_113.JPG	[11] TRAN6_160518_117.JPG	[12] TRAN6_160518_124.JPG
[13] TRAN6_160518_126.JPG	[14] TRAN6_160518_135.JPG	[15] TRAN6_160518_140.JPG
[16] TRAN6_160518_163.JPG	[17] TRAN6_160518_177.JPG	[18] TRAN6_160518_180.JPG
[19] TRAN6_160518_187.JPG	[20] TRAN6_160518_193.JPG	[21] TRAN6_160518_211.JPG
[22] TRAN6_160518_225.JPG	[23] TRAN6_160518_281.JPG	[24] TRAN6_160518_306.JPG
[25] TRAN6_160518_332.JPG	[26] TRAN6_160518_337.JPG	[27] TRAN6_160518_345.JPG
[28] TRAN6_160518_365.JPG	[29] TRAN6_160518_371.JPG	[30] TRAN6_160518_386.JPG
[31] TRAN6_160518_390.JPG	[32] TRAN6_160518_427.JPG	[33] TRAN6_160518_455.JPG
[34] TRAN6_160518_467.JPG	[35] TRAN6_160518_470.JPG	[36] TRAN6_160518_476.JPG
[37] TRAN6_160518_484.JPG	[38] TRAN6_160518_500.JPG	[39] TRAN6_160518_505.JPG
[40] TRAN6_160518_525.JPG	[41] TRAN6_160518_541.JPG	[42] TRAN6_160518_542.JPG
[43] TRAN6_160518_554.JPG	[44] TRAN6_160518_613.JPG	[45] TRAN6_160518_615.JPG
[46] TRAN6_160518_625.JPG	[47] TRAN6_160518_632.JPG	[48] TRAN6_160518_635.JPG
[49] TRAN6_160518_655.JPG	[50] TRAN6_160518_660.JPG	[51] TRAN6_160518_669.JPG
[52] TRAN6_160518_673.JPG

Specific picture descriptions: Photos above with "i" icons next to the bracketed sequence numbers (e.g. "[1] ") are described as follows:
1. TRAN6_160518_013.JPG: Vinton Cerf
2. TRAN6_160518_032.JPG: The Original ARPANET Dec 1969
3. TRAN6_160518_036.JPG: WWI 100 Years
4. TRAN6_160518_038.JPG: How does Packet Switching Work? Packets are like post cards: * Don't know how they are transported * Don't know what's written on them * Don't stay in order * Don't always get delivered
5. TRAN6_160518_072.JPG: First Three-Network Test of Internet November 22, 1977
6. TRAN6_160518_126.JPG: Layering in the Internet Application -- HTTP, FTP, SMTP, BitTorrent... Transport -- TCP, UDP Network -- Forwarding & routing -- IP Data Link Physical -- Framing, coding, channel access, modulation/demodulation -- Ethernet, WiFi, ...
7. TRAN6_160518_135.JPG: Layering in the Internet Application -- HTTP, FTP, SMTP, BitTorrent... Transport -- TCP, UDP End-to-End Layer Everything else! Reliability, integrity, packet ordering, congestion control, ... Network -- Forwarding & routing -- IP Data Link Physical -- Framing, coding, channel access, modulation/demodulation -- Ethernet, WiFi, ...
8. TRAN6_160518_140.JPG: Switch (Router) Link and network layers are implemented everywhere The end-to-end layer (i.e. transport and application) is implemented only at hosts
9. TRAN6_160518_180.JPG: The Internet "Hourglass" Link technologies: Many applications, transports, and link protocols All use IP at the network layer: universal network layer
10. TRAN6_160518_193.JPG: How does TCP work? Imagine sending a book via postcards: * Cut up pages to fit on postcards (internet packets) * Number every postcard in case they get out of order * Keep copies in case they get lost * Receiver sends a postcard to tell you want [what] has been received so far * That postcard may get lost... * Timeout and start sending duplicates until you DO get a confirmation * Don't send too many at a time (overloads mailbox)
11. TRAN6_160518_211.JPG: Internet Now
12. TRAN6_160518_281.JPG: An Internet of Things
13. TRAN6_160518_365.JPG: InterPlaNetary Internet DARPA, NASA
14. TRAN6_160518_541.JPG: Mars Reconaissance [sic] Orbiter, Mars Express, Phoenix, Mars Rovers, Mars Science Laboratory
15. TRAN6_160518_542.JPG: Interplanetary Internet * End-to-end information flow across the solar system * Layered architecture for evolvability and interoperability * IP-like protocol suite tailored to operate over long round trip light times * Integrated communications and navigation services
16. TRAN6_160518_613.JPG: Lois Romano, Editor, Washington Post Live
17. TRAN6_160518_660.JPG: Vinton Cerf and Keming Kuo
Bigger photos? To save server space, the full-sized versions of these images have either not been loaded to the server or have been removed from the server. (Only some pages are loaded with full-sized images and those usually get removed after three months.) I still have them though. If you want me to email them to you, please send an email to guthrie.bruce@gmail.com and I can email them to you, or, depending on the number of images, just repost the page again will the full-sized images.
Featured Folk: Some of the people here can also be seen on other pages on this site.
- Cerf, Vinton appears on:
  - 2023_DC_Africa_Digital_231204 DC -- USC/PDCA/GWU/UW/HU -- Africa-US Forum: Africa's Future: Technology, Innovation and the Digital Economy
  - 2016_DC_USWWI_160518 Natl World War I Memorial -- Event: Commission Press Event @ Natl Press Club
  - 2012_DC_FOI_120316 Newseum -- National Freedom of Information Day 2012 (w/panels)
  - 2011_DC_II_111109 Reynolds Center (SAAM) -- Talk: Steve Crocker and Vinton Cerf ("Conversation with Internet Inventors")
  - 2009_DC_AT4G_090610 DC -- Annual Technology for Government Reception (w/Vinton Cerf)
  - 2007_DC_NAMcG_071003 Natl Archives -- Panel -- 3rd Annual McGowan Forum on Communications ("Debate Over Internet Governance") w/Vinton Cerf and Robert Kahn
  - 2000_DC_LOC200_000424 Library of Congress -- Ceremony: Living Legends Bicentennial Ceremony
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Photo Contact: [Email Bruce Guthrie].